David Steiman
Kubernetes Platform Engineer
Berlin, Germany
Summary
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Rockstar🎓
Top SchoolDavid Steiman is a Kubernetes Platform Engineer and seasoned software architect with 13+ years building cloud-native systems, microservices and developer tooling from Berlin. A long-time JHipster core contributor, he blends hands-on full-stack development (Angular, Spring Boot/Cloud) with platform operations—designing CI/CD pipelines, Kubernetes bare-metal and hybrid clusters, and infrastructure as code. He’s CKA-certified and has led security and OAuth2 integrations in the JHipster ecosystem, giving him deep insight into service-to-service auth and production microservice management. Passionate about sharing knowledge, he blogs and contributes to open source to help other engineers bridge the gap between architecture and reliable operations.
13 years of coding experience
9 years of employment as a software developer
Bachelor of Science - BS, Informatik, Bachelor of Science - BS, Informatik at Technische Universität Berlin
Stackoverflow
3,115reputation
224kreached
113answers
6questions
kubernetes
top-5%
Github Skills (27)
microservices-application10
java10
javas10
netflix-zuul10
spring-boot10
microservices10
oauth10
angular10
api-design9
restful-api9
javascript9
api-rest9
kubernetes9
dockers9
spring-security9
Programming languages (9)
Github contributions (5)
jhipster/generator-jhipster
Mar 2016 - Jul 2022
JHipster is a development platform to quickly generate, develop, & deploy modern web applications & microservice architectures.
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:1 review, 159 commits, 59 PRs in 6 years 4 months
Contributions summary:David primarily contributed to the front-end and back-end aspects of the JHipster generator. They modified Angular entity classes, updated Docker Compose configurations, and addressed issues related to UAA microservices. The user also implemented changes in core components like account and login services, showcasing their involvement in various aspects of application development and configuration within the JHipster ecosystem. Additionally, they modified Kubernetes deployment files.
development-platformyeoman-generatorgeneratormicroservicedocker
jhipster/jhipster-registry
Nov 2017 - Jan 2019
JHipster Registry, based on Spring Cloud Netflix Eureka and Spring Cloud Config
Role in this project:Back-end Developer
Back-end DeveloperContributions:11 commits, 4 PRs, 29 comments in 1 year 2 months
Contributions summary:David primarily focused on implementing and integrating features related to OAuth2 client credentials flow within the JHipster Registry. They developed and integrated a service to retrieve access tokens for UAA authentication, essential for management endpoint access. The commits demonstrate the user's focus on microservice communication and authorization within the registry, modifying Zuul filters and configuration files to support these features. The user also refactored code to use JHipster properties for configuration, improving maintainability and modularity.
spring-bootcloud-configspring-cloud-confignetflixjhipster
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